Home / 905,499.32-1,249,563.14-512,995.69

Finding the Fourth Proportional to 905,499.32, 1,249,563.14 and 512,995.69

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Solution

The fourth proportional to 905,499.32, 1,249,563.14 and 512,995.69 is: 707,919.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    905,499.32 : 1,249,563.14 = 512,995.69 : x
  2. Step 2: Convert to fraction form
    905,499.32/1,249,563.14 = 512,995.69/x
  3. Step 3: Cross multiply
    905,499.32x = 1,249,563.14 × 512,995.69
  4. Step 4: Simplify right side
    905,499.32x = 641,020,506,123.58
  5. Step 5: Solve for x
    x = 641,020,506,123.58/905,499.32
  6. Step 6: Final answer
    x = 707,919.37

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.